Beri, G. (1993). Marketing research/2e (2nd ed.). Tata McGraw Hill.
Chicago Edition CitationBeri, G.C. Marketing Research/2e. 2nd ed. Tata McGraw Hill, 1993.
Cita MLABeri, G.C. Marketing Research/2e. 2nd ed. Tata McGraw Hill, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.